Road-scraper.



P. C. ELSEY.

ROAD SCRAPER.

APPLICATION HLED MAR. 24, 1915.

Patented Dec. 28, 1915.

' 2 SHEETS-SHEET I.

P. c. ELS EY.

ROAD SCRAPER.

APPLICATION FILED MAR. 24, 1915.

Patented Dec. 28, 1915.

2 SHEETS-SHEET ,2.

l at as A PRESTLEY C. ELSEY, 0F QUINCY, ILLINGIS, ASSIGNOR TO A. V. ELY, OF NEW LONDON,

MISSOURI.

ROAD-SORAPER.

Application filed March 24, 1915.

To all whom it may concern:

Be it known that I, PRESTLEY C. ELsnY, a citizen'of the United States, residing at Quincy, in the county of Adams and State of Illinois, have invented certain new and useful Improvements in Road-Scrapers, of which the following is a specification.

This invention relates to wheeled scrapers, and is particularly adapted and intended for road work.

The machine is of the double bladed type, that is, having wing blades at opposite sides of the wheeled frame, which blades act to scrape the road material toward the middle or crown of the road.

One of the objects of the invention is to provide improved means for supporting and controlling these blades.

Another object of the invention is to provide improved means for crowning the material brought up by the wing blades, especially avoiding a ridge of loose and coarse stufi at the middle of the road. Therefore in addition to the two wing blades, the machine embodies a rear frame, which carries a pair of scrapers, the lower edges of which are formed to give a proper crown to the road; and the said frame also carries a final rear cross scraper or plate which levels and packs down any middle ridge produced by the blades in advance thereof.

The machine can be operated by one man, and may be drawn by horse or traction power, and it is capable of easy manipulation for steering or turning purposes.

Other advantages and objects will appear from the following description and the accompanying drawings, in which- Figure 1 is a perspective view of the machine, as seen from the side. Fig. 2 is a rear perspective view. Fig. 3 is a section on the line 3-3 of Fig. 1, of an adjustable supporting bar for the rear end of the wing blade. Fig. 4:, is a top plan view of the rear frame and connected parts. Fig. 5 is a detail of a universal joint connection between the frame and rear bars.

Referring specifically to the drawings, A indicates a platform frame, preferably rectangular in form and made of metal shapes. It is mounted in an'ordinary manner on wheels W, the front wheels being low enough to turn under the frame, for short turning purposes. A tongue E is connected to the front axle, and serves for the attachment of Specification of Letters Patent.

Patented Decfle, 1915.

Serial No. 18,589.

suitable power. The details of the frame and running gear are not material and any suitable structure may be employed.

At each side of the frame is a wing blade B, set at an angle to scrape the earth toward the crown of the road or the middle line of the machine. Each blade B is backed by an angle metal bar 6, the horizontal flange of which is located above the lower edge of the blade to provide connection for the draft devices. The lower edge of each blade is provided with a forwardly projecting cutting edge or strip 6 whichis preferably sharpened, and made in sections, so that any section can be renewed when worn. Obviously, these blades when set on opposite sides of the machine will scrape the material toward the middle of'the road, and their rear ends are spaced apart several feet.

The front draft connection of each wing blade consists of a chain 0 connected to a hooked arm G, the lower end of which is pivoted at g to the flange of the angle bar I). The inner end of the chain is connected to a winding drum C operated by hand wheel D on the platform, a pawl and ratchet cl being provided to hold the chain as desired. The chain passes over a pulley L mounted on the outer end of a swinging arm P, the inner end of which is pivoted to the side bar of the frame A. to any direction or angle of the chain 0, according to the length thereof.

The rear or main draft connection for the blade B consists of a bar F the outer end of which is dropped or bent downwardly and pivoted at f to the flange of the angle 6. The inner or front end of the bar F is connected to brackets a on the side bars of the frame A by a universal oint consisting of a block 6 with a vertical pivot 7 set between the brackets a and a horizontal pivot 8 connecting the block to the bar F. The angle of the blade B is controlled by a rear connection consisting of a longitudinally adjustable bar comprising two parts. One part, M, is a folded bar or channel, and the other part, m, is a bar which fits between the sides of the bar M, and is hooked at its outer end around under the flange of the bar Z), to which it is pivoted by a bolt m. The bars M m have a plurality of holes 10 to receive a bolt 11, whereby the connection can be made longer or shorter with correspond ing variation of the set or angle of the blade The arm thus accommodates itself B. The inner end of the. bar M is connected to the under side of the frame A, near the middle line thereof and on its under side, by means of a universal joint connection 11 To raise or lower the rear end of the wing blade B, a chain Q is connected to the bar M and passes over a pulley L at the rear corner of the frame A and is connected to a drum C operated by a shaft and wheel D and provided with a suitable holding ratchet cl.

It will be seen that there are two hoisting drums and devices for each blade; one for the front and one for the rear, whereby the angle of the blade in a vertical plane may be adjusted, the rear end, in practice, being usually several inches higher than the front end so as to crown the road, and the universal connections referred to permit this adiustment without straining the parts.

When the machine is drawn forward the wing blades will scrape the material toward the middle of the road, some of the material passing rearwardly between the rear ends of the blades. To operate on this material and give a proper crown to the road, I provide a rear frame F which is connected to the -main frame A by a V-tongue H. This frame F is mounted on runners N, so that it is held at a fixed distance above the road. The frame carries a pair of scrapers I which stand on edge and are disposed at a slight angle toward the middle line, the inner ends of the scrapers being spaced apart. The lower edges of these scrapers are sheared or 'cut on an inclined or curved line to give a proper shape to the crown, and they operate on the material which passes to the rear between the wing blades B. The edges of the plates I are shaped according to the crown desired. Some of the material passes rearwardly between the inner ends of the plates I, and to operate on this material and level the ridge which would otherwise be formed, I provide a final rear plate K, extending straight across the line of draft, and of sufficient length to cover the crown. This plate K is sheared to a proper curvature at its lower edge, and it is fixed at its ends to the side members of the frame F. It is tilted forward from the vertical, so that the material acted on is scraped or leveled down and distributed to form a perfect crown.

The operation of the machine will be evident from the above description, but it may be added that in turning short to either side, the wing blade B on that side is hoisted to clear it from the ground, and the machine can then be swung around in a small space. The Wing blades can be adjusted to cover any width desired, being narrowest when the front end of the blades are almost directly under the pulleys L, the arms P being provided to afford purchase points above the blades for hoisting the same vertically.

What I claim as new is 1. In a road scraper, in combination, a wheeled frame, a wing blade at the side thereof, a draft bar between said blade and frame having a universal joint connection to the middle part of the side of the frame, an arm pivoted to the front part of the frame to swing horizontally and not vertically at the side thereof, a chain connecting the frame and the front end of the blade and passing over the outer end of said arm and a longitudinally adjustable bar connecting the rear end of the blade and the frame, the draft bar being pivotally connected to the blade between the connections thereto of the chain and the adjustable bar.

2. In a road scraper, the combination of a wheeled frame, a blade having a projecting flange on the back thereof, a draft con nection between said flange and frame, and adjusting connections between the front and rear ends of the blade and the frame, each of said connections including a hooked arm pivoted to said flange and extending over the top of the blade.

In testimony whereof, I aflix my signa ture in presence of two witnesses.

PRESTLEY C. ELSEY.

Witnesses:

LORETTA E. Gnzsnve, S. E. SEnHonN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

